Microstructure analysis of electrokinetically stabilized peat

In this research, four new chemical grout reagents were used, namely, sodium silicate, calcium chloride, calcium oxide, and aluminium hydroxide. The injection of the chemicals through the soil by using an electrokinetic method was successfully performed. Increase in the shear strength of stabilized...

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Main Authors: Moayedi, Hossein, Nazir, Ramli, Kazemian, Sina, Kim Huat, Bujang
Format: Article
Published: Elsevier 2014
Online Access:http://psasir.upm.edu.my/id/eprint/34521/
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author Moayedi, Hossein
Nazir, Ramli
Kazemian, Sina
Kim Huat, Bujang
author_facet Moayedi, Hossein
Nazir, Ramli
Kazemian, Sina
Kim Huat, Bujang
author_sort Moayedi, Hossein
building UPM Institutional Repository
collection Online Access
description In this research, four new chemical grout reagents were used, namely, sodium silicate, calcium chloride, calcium oxide, and aluminium hydroxide. The injection of the chemicals through the soil by using an electrokinetic method was successfully performed. Increase in the shear strength of stabilized soil was higher in the locations near the cathode and the calcium oxide showed the highest increment. The soil microstructure is comprehensively changed due to the change in the pH of the soil, and fluid flow during the electrokinetic application depends upon time and location of samples taken along the cell. The EDX output of natural peat showed the presence of oxygen (46.2%), carbon (29.3%), silica (5.1%), alumina (2.5%), and calcium (3.0%). However, after electrokinetic injection of the sodium silicate, calcium oxide, calcium chloride, and aluminium hydroxide, the concentration of these elements in the soil samples taken adjacent to the anode changed, with the carbon changing to 24.9%, 16.5%, 31.4%, 34%; the oxygen to 47.6%, 41.9%, 53%, 46%; the silica to 12.3%, 4.1%, 4.2%, 4.7%; the alumina to 2.5%, 1.2%, 2.2%, 6.2%; and the calcium to 1.8%, 18.6%, 6.1%, 2.6%, respectively.
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spelling upm-345212015-12-15T08:11:30Z http://psasir.upm.edu.my/id/eprint/34521/ Microstructure analysis of electrokinetically stabilized peat Moayedi, Hossein Nazir, Ramli Kazemian, Sina Kim Huat, Bujang In this research, four new chemical grout reagents were used, namely, sodium silicate, calcium chloride, calcium oxide, and aluminium hydroxide. The injection of the chemicals through the soil by using an electrokinetic method was successfully performed. Increase in the shear strength of stabilized soil was higher in the locations near the cathode and the calcium oxide showed the highest increment. The soil microstructure is comprehensively changed due to the change in the pH of the soil, and fluid flow during the electrokinetic application depends upon time and location of samples taken along the cell. The EDX output of natural peat showed the presence of oxygen (46.2%), carbon (29.3%), silica (5.1%), alumina (2.5%), and calcium (3.0%). However, after electrokinetic injection of the sodium silicate, calcium oxide, calcium chloride, and aluminium hydroxide, the concentration of these elements in the soil samples taken adjacent to the anode changed, with the carbon changing to 24.9%, 16.5%, 31.4%, 34%; the oxygen to 47.6%, 41.9%, 53%, 46%; the silica to 12.3%, 4.1%, 4.2%, 4.7%; the alumina to 2.5%, 1.2%, 2.2%, 6.2%; and the calcium to 1.8%, 18.6%, 6.1%, 2.6%, respectively. Elsevier 2014-02 Article PeerReviewed Moayedi, Hossein and Nazir, Ramli and Kazemian, Sina and Kim Huat, Bujang (2014) Microstructure analysis of electrokinetically stabilized peat. Measurement, 48. pp. 187-194. ISSN 0263-2241; ESSN: 1873-412X http://www.sciencedirect.com/science/article/pii/S0263224113005496 10.1016/j.measurement.2013.11.006
spellingShingle Moayedi, Hossein
Nazir, Ramli
Kazemian, Sina
Kim Huat, Bujang
Microstructure analysis of electrokinetically stabilized peat
title Microstructure analysis of electrokinetically stabilized peat
title_full Microstructure analysis of electrokinetically stabilized peat
title_fullStr Microstructure analysis of electrokinetically stabilized peat
title_full_unstemmed Microstructure analysis of electrokinetically stabilized peat
title_short Microstructure analysis of electrokinetically stabilized peat
title_sort microstructure analysis of electrokinetically stabilized peat
url http://psasir.upm.edu.my/id/eprint/34521/
http://psasir.upm.edu.my/id/eprint/34521/
http://psasir.upm.edu.my/id/eprint/34521/